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2020 GMC Yukon Owners Manual - Bulb Replacement



Owner’s Manuals 2020 Bulb Replacement

Bulb Replacement

For the proper type of replacement bulbs, or any bulb changing procedure not listed in this section, contact your dealer.

Caution
Do not replace incandescent bulbs with aftermarket LED replacement bulbs. This can cause damage to the vehicle electrical system.

High Intensity Discharge (HID) Lighting

Warning
The High Intensity Discharge (HID) lighting system operates at a very high voltage. If you try to service any of the system components, you could be seriously injured. Have your dealer or a qualified technician service them.

After an HID headlamp bulb has been replaced, the beam might be a slightly different shade than it was originally. This is normal.

LED Lighting

This vehicle has several LED lamps. For replacement of any LED lighting assembly, contact your dealer.

Fog Lamps

To replace the front fog lamp bulb:

  1. Locate the fog lamp under the front bumper.
  2. Disconnect the electrical connector from the fog lamp bulb assembly by pressing the connector release.
  3. Turn the bulb counterclockwise to remove it from the housing.

Back-Up Lamps

To replace a back-up bulb:

1. Open the liftgate.

2. Remove the taillamp closeout cover from the lamp assembly by pulling rearward from the top and bottom at the same time to unfasten the snap tabs.

3. Remove the two screws from the taillamp assembly.
4. Pull the taillamp assembly straight back to remove.

5. Turn the bulb socket counterclockwise to remove it from the taillamp assembly.
6. Pull the bulb straight out from the socket.
7. Put a new bulb into the socket, insert it into the taillamp assembly, and turn the bulb socket clockwise until it clicks.
8. Reinstall the taillamp assembly and tighten the screws.
9. Reinstall the taillamp cover by snapping it into place.

License Plate Lamp

Passenger Side Shown, Driver Side Similar

  1. Bulb Socket
  2. Bulb
  3. Lamp Assembly

To replace one of these bulbs:

  1. Push the lamp assembly (3) toward the center of the vehicle.
  2. Pull the lamp assembly down to remove.
  3. Turn the bulb socket (1) counterclockwise to remove it from the lamp assembly (3).
  4. Pull the bulb (2) straight out of the bulb socket (1).
  5. Push the replacement bulb straight into the bulb socket and turn the bulb socket clockwise to install it into the lamp assembly.
  6. Push the lamp assembly back into position until the release tab locks into place.